Electronic thermometers have become a necessity in life. Hospitals, clinics, and homes all have its shadow, because it can help us know whether our body is sick, and assist in treatment. The electronic clinical thermometer is more convenient than the mercury clinical thermometer, the measurement time is short, and it is safer to use, so it is welcomed by people. From the appearance of the electronic thermometer, there are a temperature sensor, a thermometer, a display screen, a switch, a button and a battery cover. The most important component of an electronic thermometer is a temperature sensor.

The temperature sensor in the electronic clinical thermometer requires high resolution, high accuracy, and fast measurement response speed. What material can be used as a temperature sensor?
Common temperature sensors include thermistor sensors, thermal resistance sensors, and thermocouple temperature sensors. Most thermistor sensors use semiconductor materials, because semiconductor materials have better characteristics than other materials. For example, semiconductor thermistor materials have better temperature coefficient of resistance and high resistivity than other materials. Therefore, temperature sensors made of semiconductor thermistor materials have higher sensitivity than temperature sensors made of other thermistor materials, so thermometers made with this kind of sensor are easier to detect small changes in temperature.

The State Food and Drug Administration released the "Notice of the Comprehensive Department of the State Food and Drug Administration on Matters Concerning the Implementation of the Convention on Mercury" on its website on October 16, 2020. The "Notice" clearly requires that from January 1, 2026, my country will completely ban the production of mercury-containing thermometers and mercury-containing sphygmomanometer products, which will greatly stimulate the market demand for electronic thermometers.

MF51E temperature measuring NTC thermistor has the characteristics of high test accuracy, small size, light weight, fast heat induction, high sensitivity, and good interchangeability. The temperature measurement accuracy of the product reaches ±0.0125℃, and the temperature change caused by the resistance change-the annual drift rate is only 0.01℃. Products are widely used in electronic thermometers, medical equipment, smart wear, etc., and are favored by customers.